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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 28, 2025
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Title 30
Chapter I
Part 28
Subpart D - Subpart D—Quality Control
§ 28.30 - Quality control plans; filing requirements.
§ 28.31 - Quality control plans; contents.
§ 28.32 - Proposed quality control plans; approval by MSHA.
§ 28.33 - Quality control test methods, equipment, and records; review by MSHA; revocation of approval.
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